NEET Physics Magnetic Properties of Materials Assertion Reason Question
Assertion (A): The magnetic field inside a solenoid filled with a material having non-zero magnetisation is greater than that inside an empty solenoid.
Reason (R): The field contributed by the material core is proportional to its magnetisation.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The field inside a solenoid with a material having non-zero magnetisation increases due to the additional field Bm, which is proportional to the magnetisation M of the material. This explains why the internal field is greater than when the solenoid is empty.
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